JP2013255775A - Ball shooting device of pachinko machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ball shooting device of a Pachinko machine, configured to prevent balls from being shot in various directions, and to prevent clogging with balls without using a ball feeding device to feed balls one by one to a shooting ball supply device.SOLUTION: A ball shooting device of a Pachinko machine comprises: a rotating body 3 in which a ball shooting groove 3g is formed in a conic surface 3e having a large-diameter tip; a body 1 that is formed along the conic surface 3e and has a fixed groove 4a to hold one ball with the ball shooting groove 3g; and a driving source 2 that moves balls forward while increasing the speed by rotating the rotating body 3 around the central axis of the cone, and shoots the balls from the tip of the fixed groove 4a. The body can be formed in the shape of a box that stores the rotating body, and a ball storing member can be formed below the box-like body.

Description

  The present invention relates to a ball launcher for a pachinko machine.

  As a ball launching device of a pachinko machine, for example, as shown in Patent Document 1, a structure in which a ball supplied to a ball launching position is launched by a bullet ball driven by a solenoid or the like is common. However, such a conventional ball launcher has the following problems.

  First, in order to stably launch a ball, it is necessary to accurately place the ball at the ball launch position and to strike the ball with precision. For this purpose, high assembling accuracy is required, and if the assembling accuracy is poor, variation in the flying of the balls occurs for each launching device.

  Second, in order to stably fire the spheres, it is necessary to supply the spheres one by one to the sphere launch position. For this purpose, the balls must be arranged in a row in a row from the saucer in which the balls are stored, and then supplied one by one to the supply ball launching position, which requires many parts, and the ball is clogged. There is a fear.

  Third, even if the player performs a ball removal operation at the end of the game, a small number of balls remain inside the ball launcher, and the balls cannot be completely discharged.

JP 2002-35248 A

  Therefore, the object of the present invention is to solve the above-mentioned conventional problems, and it is difficult for the launching device to vary in ball skipping, a device for sending the balls one by one to the supply ball firing position is unnecessary, and clogging of the ball is less likely to occur. It is to provide a ball launcher for a pachinko machine.

  The ball launcher of the pachinko machine of the present invention made to solve the above problem is formed along a rotating body having a ball launch groove formed on a conical surface whose tip has a large diameter, and this conical surface, A main body having a fixed groove for sandwiching one sphere between the sphere launch groove and the rotator being rotated around its conical central axis to advance the sphere while accelerating the tip of the fixed groove And a drive source that fires from In addition, it is preferable that the fixed groove is formed in a main body that pivotally supports the rotating body, and has a structure in which a spherical inflow path is formed in a base portion of the fixed groove. In addition, a ball launch rail can be integrally formed at the tip of the fixed groove. A rotary solenoid that swings and rotates can be used as the drive source.

  In addition, the main body may have a box shape in which a rotating body is accommodated, and a sphere storage portion may be provided at a lower portion thereof. In this structure, the sphere storage portion can be provided with a sphere polishing mechanism for polishing the sphere by rotation of the rotating body, and a return sphere path for supplying a return sphere to the sphere storage portion is formed in the main body. be able to.

  The ball launcher for a pachinko machine according to the present invention is configured such that a ball is sandwiched between a ball launch groove formed on a conical surface of a rotating body and a fixed groove of the main body, and the rotating body is rotated around the center axis of the cone. Is accelerated along the fixed groove and fired from the tip. For this reason, the launch direction of the sphere is accurately regulated by the fixed groove, and variations are unlikely to occur.

  Also, the pachinko machine ball launcher of the present invention does not need to send the balls one by one to the supply ball launch position as in the prior art, and the number of parts and space can be reduced, and there is no risk of clogging. Furthermore, if a ball removal portion is formed on the bottom surface of the base of the fixed groove, complete ball removal is possible. The rotating body is preferably oscillated and rotated by a rotary solenoid. However, since the ball launch groove is formed on the conical surface, the sphere is at a position close to the central axis of the cone in the initial stage of driving, and is gradually accelerated and fired. For this reason, the starting torque of the rotary solenoid is reduced, and it is possible to finally accelerate to a high firing speed.

  Further, if the main body is formed in a box shape in which the rotating body is accommodated and a sphere storage portion is provided at the lower part, the main body can be easily incorporated into the pachinko machine. This structure is particularly suitable for a sealed pachinko machine. If a sphere polishing mechanism for polishing a sphere by rotation of the rotating body is provided in the sphere reservoir as in claim 7, a separate sphere polishing mechanism is provided. There is no need to provide. If a return ball path for supplying a return ball to the ball storage part is formed in the main body as in claim 8, processing of the return ball is easy.

1 is a perspective view showing a first embodiment of the present invention. It is a back perspective view showing the 1st embodiment of the present invention. It is a side view which shows the 1st Embodiment of this invention. It is a top view which shows the 1st Embodiment of this invention. It is a perspective view which shows an internal structure. It is a perspective view of a rotary body. It is a back perspective view of a rotary body. 1 is a perspective view showing a first embodiment of the present invention. It is explanatory drawing which shows the rotational moment (torque) in the initial stage of ball | bowl delivery, and the rotational moment (torque) at the time of ball | bowl ejection. It is a perspective view which shows the delivery process of a ball | bowl. It is also a plan view. It is sectional drawing similarly. It is a perspective view which shows the time of ball | bowl injection | emission. It is also a plan view. It is a perspective view which similarly shows an internal structure. It is explanatory drawing which shows the injection | emission direction of a ball | bowl. It is a perspective view which shows the state which attached the ball | bowl launching rail. It is sectional drawing which shows the 2nd Embodiment of this invention. It is a disassembled perspective view which shows the 2nd Embodiment of this invention. It is a cross-sectional perspective view of the principal part. It is a cross-sectional perspective view of the principal part. It is a cross-sectional perspective view of the principal part. It is an operation explanatory view.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1 and FIG. 8, the ball launcher of the present invention is attached to a main body 1, a rotating body 3 that is pivotally supported by the main body 1 so as to be rotatable by a predetermined angle, Drive source 2 provided.

  As shown in FIGS. 6 and 7, the rotator 3 is formed by forming a ball launch groove 3 g on a conical surface 3 e having a large tip. A shaft hole 3b is formed on the conical center axis of the conical surface 3e. In the present embodiment, the rotating body 3 has a shape obtained by cutting the truncated cone into a sector fan shape so that the central angle is about 30 to 45 degrees, but it may be a perfect truncated cone.

  The main body 1 is formed with a cavity having a size capable of swinging the rotating body 3 by a predetermined angle, and the rotating body 3 is housed and held therein. A rotary solenoid driving shaft 2a as a driving source 2 is inserted into the shaft hole 3b on the front surface side of the rotating body 3, and a shaft pin 3c penetrating the inner wall of the main body 1 is inserted into the shaft hole 3b on the rear surface side. Has been. In this way, the rotating body 3 is pivotally supported inside the main body 1 and can be rotationally rotated in both directions by a predetermined angle by the drive source 2.

  As described above, the ball launch groove 3g is formed on the conical surface 3e of the rotating body 3 from the rear end to the front end. The inner surface 3a has a substantially semicircular shape for receiving the lower half of the sphere as shown in FIG. On the other hand, the main body 1 is formed with a fixing groove 4a for receiving the upper half of the sphere. The fixed groove 4 a is formed on the back surface of the fixed groove forming member 4. The fixed groove 4a is formed along the conical surface 3e of the rotating body 3, and has a cross-sectional shape in which one sphere can be sandwiched between the sphere launch groove and 3g. In this embodiment, the ball launch groove 3g is a spiral groove and the fixed groove 4a is a straight groove. Conversely, the ball launch groove 3g may be a straight groove and the fixed groove 4a may be a spiral groove.

  The front end of the fixed groove 4a opens above the front plate portion 1b of the main body 1 to form a ball launch hole 4c. Further, a sphere supply section 5 having a width corresponding to one sphere is formed at the rear end of the fixed groove 4a. In the present embodiment, a wedge-shaped slider 5b having an inclined upper surface is inserted between the left and right walls formed at the rear portion of the main body 1, so that a sphere can be supplied to the rear end of the fixed groove 4a. In the present embodiment, the protruding piece 5d of the slider 5b is inserted into the slit 5c of the main body 1 and fixed.

  As shown in FIG. 5, a discharge chute 5e having a lower rear portion is formed at the lower portion of the slider 5b. For this reason, the sphere of the sphere supply unit 5 can be completely discharged to the rear of the main body 1 by pulling out the slider 5b.

Next, the operation of the ball launcher of the present invention will be described.
As shown in FIG. 4, at the time of launch standby, the rear end of the ball launch groove 3g of the rotator 3 is in a position that coincides with the rear end of the fixed groove 4a. To be supplied. Since the ball launch groove 3g of the rotator 3 has a semicircular cross section, it can accept only one sphere.

  From this state, the rotary solenoid as the drive source 2 rotates the rotating body 3 by a predetermined angle. At the same time, the sphere sandwiched between the fixed groove 4a and the ball launch groove 3g is pushed forward along the fixed groove 4a while accelerating as shown in FIGS. As shown in FIG. 14, it is fired from the ball launch hole 4c at the front end of the fixed groove 4a. As described above, in the ball launching apparatus of the present invention, the launching of the ball is performed along the fixed groove 4a, so that the launching direction does not vary. Also, since the ball firing speed is uniquely determined by the rotational speed of the drive source 2, it can be arbitrarily and accurately controlled.

  At the same time as the rotator 3 rotates from the firing standby position, the rear end of the fixed groove 4a is blocked by the rear end surface of the rotator 3, so that the following sphere remains stopped at the sphere supply unit 5 and the two balls Will not enter the ball launch groove 3g at the same time. For this reason, the conventional sphere alignment supply device is unnecessary. After the ball is launched, the rotator 3 is driven in the opposite direction to return to the firing standby position, and the same cycle is repeated thereafter.

  As shown in FIG. 9, since the ball launching device of the present invention has a ball launching groove 3g formed on the conical surface 3e, the distance from the cone central axis S serving as the rotation axis to the ball launching groove 3g is the rear end. Then, r, and R at the front end, which gradually increases. For this reason, the moment of inertia, which is defined as the mass of the sphere × the square of the distance, becomes smaller at the start of driving. For this reason, starting torque can be made small and the drive source 2 can be miniaturized.

  In addition, if the angle at which the ball launch groove 3g intersects the fixed groove 4a is set so as to decrease toward the tip side, the ball can be launched while being accelerated. During this time, the sphere moves gradually away from the conical center axis S, and the sphere can be launched using centrifugal force.

  As described above, in this apparatus, it is physically impossible for the succeeding sphere to enter the sphere launch groove 3 g, and the succeeding sphere is waiting at the sphere supply unit 5. For this reason, the sphere of the sphere supply unit 5 can be completely discharged to the rear of the main body 1 by pulling out the slider 5b.

  In the above description, the fixed groove 4a is described as a straight groove. However, as shown in FIG. 16 (a), the ball is fired while both sides are regulated by the fixed groove 4a and the ball launch groove 3g. As shown in FIG. 16B, 4a is preferably symmetrical with the ball launch groove 3g. For this purpose, a slightly upward angle may be provided only in the vicinity of the front end of the fixing groove.

  In the embodiment described above, the ball launcher does not include a ball launch rail. In a normal launching device, the ball launching device and the ball launching rail are separated from each other, and the return ball that has returned because the launching intensity is weak is collected. However, in the ball launching device of the present invention, the ball launching hole 4c at the front end of the fixed groove 4a is blocked by the front end face of the rotating body 3 except during the ball launching, and the return ball does not enter the ball launching device.

  For this reason, as shown in FIG. 17, the ball launching rail 1a can be formed integrally with the main body 1 of the ball launching device, whereby the number of parts can be reduced.

  The second embodiment shown in FIGS. 18 to 23 will be described below. This second embodiment is a more practical form of the ball launcher of the present invention. As shown in FIG. 18, the main body 10 has a box shape, and the rotating body 11 is accommodated therein. The rotating body 11 is rotated in a certain direction by a motor 12 which is a driving source.

  As shown in FIG. 19, the rotating body 11 has a conical shape, and a ball launch groove 13 is formed on the outer peripheral surface thereof. The fixing groove 14 is also formed inside the main body 10, and it is the same as in the first embodiment that the ball sandwiched between them is accelerated and fired. A spiral groove 15 is formed in the lower part of the rotating body 11, and has a structure in which a sphere is sandwiched and moved between the wall surface of the main body 10 and supplied to the sphere launch groove 13.

  As shown in FIGS. 20 and 21, a sphere storage portion 16 is provided in the lower portion of the box-shaped main body 10. As shown in FIG. 18, the out ball that has flowed into the out ball collection port 17 at the bottom of the game board passes from the opening 19 on the side surface of the main body 10 via the collection path 18 to the ball storage unit 16 along the slope 20. Inflow.

  A sphere polishing mechanism 21 is provided on the bottom surface of the sphere storage unit 16. The sphere polishing mechanism 21 attaches a polishing plate 22 to the lower end portion of the rotating body 11, rotates the polishing plate 22 together with the rotating body 11, and polishes the sphere in the sphere storage unit 16. Since the sphere flowing into the sphere reservoir 16 passes through the upper surface of the polishing plate 22 and reaches the lower end of the spiral groove 15, the surface of the sphere is always polished.

  The upper surface of the rotating body 11 is closed by a disk 23. A spherical passage 25 as shown in FIG. 24 is formed on the back surface of the lid 24 of the box-shaped main body 10. The ball passage 25 communicates with the base of the ball launch rail 1a. When a return ball from the ball launch rail 1a is generated, the ball passage 25 passes through the ball passage 25 formed between the disk 23 and the lid 24. This is for dropping the return ball into the ball storage unit 16. Note that, at the moment when the ball is launched, the fixed groove 14 and the ball launch groove 13 are in a position where they coincide with each other. However, since the ball launch groove 13 is separated from the fixed groove 14 by the rotation of the rotating body 11, the ball launch rail 1a. The return sphere from the ball always flows into the ball passage 25 side.

  Note that a vertical wall 26 is formed in the sphere storage portion 16, and the sphere that has flowed into the sphere storage portion 16 from the opening 19 on the side surface of the main body 10 and the sphere passage 25 is formed in a spiral groove from the front side of the drawing in FIG. 21. The flow of the sphere is regulated so as to be supplied to 15 bases.

  As shown in FIG. 23, the ball launcher of the second embodiment configured as described above is rotated one by one by the spiral groove 15 while polishing the balls in the ball storage unit 16 by the ball polishing mechanism 21. It is fired by the ball launch groove 13 of the body 11 and the fixed groove 14 of the main body 10. The out sphere and the return sphere flow into the sphere storage unit 16, and the number of shot spheres, the number of out spheres, and the number of return spheres are counted by the sensor 27. The ball launching device of the second embodiment is suitable for a sealed pachinko machine in which a small number of balls are sealed inside a gaming machine, but it goes without saying that it can also be applied to a normal pachinko machine.

DESCRIPTION OF SYMBOLS 1 Main body 1a Ball launch rail 1b Front plate part 2 Drive source 2a Drive shaft 3 Rotating body 3a Inner surface 3b Shaft hole 3c Shaft pin 3e Conical surface 3g Spherical launch groove 4 Fixed groove forming member
4a Fixed groove 4c Sphere launch hole 5 Sphere supply part 5b Slider 5c Slit 5d Projection piece 5e Discharge chute 10 Main body 11 Rotating body 12 Motor 13 Ball launch groove 14 Fixed groove 15 Spiral groove 16 Sphere storage part 17 Out sphere collection port 18 Collection path 19 Opening 20 Slope 21 Sphere Polishing Mechanism 22 Polishing Plate 23 Disk 24 Lid 25 Ball Path 26 Vertical Wall 27 Sensor

Claims (8)

  A rotating body having a spherical launch groove formed on a conical surface having a large tip, and a main body having a fixing groove formed along the conical surface and sandwiching one sphere between the spherical launch groove; A ball launching device for a pachinko machine comprising: a driving source for rotating the rotating body around a central axis of the cone to advance the ball while accelerating and launching from the tip of the fixed groove.   2. The ball launcher for a pachinko machine according to claim 1, wherein one of the ball launch groove and the fixed groove is a spiral groove, and the other is a linear groove.   2. The ball launcher for a pachinko machine according to claim 1, wherein the fixed groove is formed in a main body that supports the rotating body, and a ball inflow path is formed in a base portion of the fixed groove.   2. The ball launcher for a pachinko machine according to claim 1, wherein a ball launch rail is integrally formed at the tip of the fixed groove.   2. The ball launcher for a pachinko machine according to claim 1, wherein the driving source is a rotary solenoid that rotates and rotates.   2. The ball launcher for a pachinko machine according to claim 1, wherein the main body has a box shape in which a rotating body is housed, and a ball storage portion is provided at a lower portion thereof.   The ball launching device for a pachinko machine according to claim 6, wherein a ball polishing mechanism for polishing the ball by rotation of the rotating body is provided in the ball storage unit.   The ball launcher for a pachinko machine according to claim 6, wherein a return ball path for supplying a return ball to the ball storage unit is formed in the main body.

Images